I'm trying to document my code but when I create a function with document standard /** */ I'm having errors like

promise returned from `findByTestAttr` query must be handledeslinttesting-library/await-async-query)

I don't know what is the problem. Could anyone explain to me why that happens?

Here is the code.

/**
* Returns node(s) with the given data-test attribute.
* @param {ShallowWrapper} wrapper - Enzyme shallow wrapper.
* @param {string} val - Value of data-test attribute for search.
* @returns {ShallowWrapper}
*/
export const findByTestAttr = (wrapper, val) => {
  return wrapper.find(`[data-test="${val}"]`);
};

And I'm calling it here:

test("renders without errors", () => {
  const wrapper = mount(<App />);
  const appComponent = findByTestAttr(wrapper, "component-app");
  expect(appComponent).toHaveLength(1);
});